CCL5 and cystic fibrosis: The CCL5/RANTES (S2B Fig) levels on average across the 24 hours, were significantly elevated in patients with obstructive CF compared with obstructive non-CF (S1 and S2 Figs) (obstructive CF: 9525.06 ± 1023.33 n = 12; obstructive non-CF: 5559.81 ± 708.81 n = 25; p = 0.008) (S2 Fig).